Victron Energy MultiPlus-II 12/3000 120V Dual Output Inverter Charger with PowerAssist and Remote Monitoring

MultiPlus-II 12/3000 120-50 2X 120V

The MultiPlus-II combines the functions of the MultiPlus and the MultiGrid. It has all the features of the MultiPlus, plus an external current transformer option to implement PowerControl and PowerAssist and to optimize self-consumption with external current sensing (max. 32A).

It also has all the features of the MultiGrid with built-in anti-islanding and an increasingly long list of country approvals.

PowerAssist

The MultiPlus-II will prevent overload of a limited AC source, such as a generator or shore power connection. First, battery charging will automatically be reduced when otherwise an overload would occur. The second level will boost the output of a generator or shore side supply with power taken from the battery.

ESS: Energy Storage Systems

The MultiPlus-II is the key component in a Victron ESS system, providing the flexibility to combine with MPPT Solar Chargers or Grid-tie PV Inverters. For examples and more detailed information see the ESS (Energy Storage System) manual.

Uninterrupted AC power (UPS function)

In the event of a grid failure, or when shore or generator power is disconnected, the inverter within the Multi is automatically activated and takes over the supply to the connected loads. This happens so fast (less than 20 milliseconds) that computers and other electronic equipment will continue to operate without disruption.

Remote Monitoring and Control

When coupled with a GX device (e.g. Cerbo GX) you can monitor and control your Multi and system or systems' locally (LAN) or remotely via the internet from anywhere in the world, using the free VRM app and free VRM portal website. Access can be from a phone, tablet, laptop, or PC for multiple operating systems. There is no end to the level of control, from adjusting your Multi to auto-starting a backup generator and more.

Specifications:

• PowerControl PowerAssist: Yes
• Transfer Switch: 50A
• Maximum AC Input Current: 50A (each leg)

Inverter Specifications:

• DC Input Voltage Range: 9,5 17 V
• Output: Output Voltage 120 VAC 2% / Frequency 60 Hz 0,1% (1)
• Continuous Output Power at 25C (3): 3000 VA
• Continuous Output Power at 25C: 2400 W
• Continuous Output Power at 40C: 2200 W
• Continuous Output Power at 65C: 1700 W
• Maximum Apparent Feed-In Power: 2500 VA
• Peak Power: 5500 W
• Maximum Efficiency: 93%
• Zero Load Power: 13W
• Zero Load Power in AES Mode: 15W
• Zero Load Power in Search Mode: 4W

Charger Specifications:

• AC Input (Split Phase): 180-280 VAC 45 65 Hz
• AC Input (Single Phase): 90-140 VAC 45 65 Hz
• Charge Voltage 'Absorption': 14,4 V
• Charge Voltage 'Float': 13,8 V
• Storage Mode: 13,2 V
• Maximum Battery Charge Current (4): 120 A
• Battery Temperature Sensor: Yes

General Specifications:

• Auxiliary Output: 35 A Each leg
• External AC Current Sensor (optional): 100 A
• Programmable Relay (5): Yes
• Protection (2): a g
• VE.Bus Communication Port: For parallel, split phase and three phase operation, remote monitoring and system integration
• General Purpose Com. Port: Yes, 2x
• Remote On-Off: Yes
• Operating Temperature Range: -40 to +65C (-40 150 F) (fan assisted cooling)
• Humidity (Non-Condensing): Max 95%

Enclosure Specifications:

• Material Color: Steel, blue RAL 5012
• Protection Category: IP22
• Battery-Connection: 2x2 M8 bolts
• 120 V AC-Connection: Screw terminals 21 mm (4 AWG)
• Weight: 22 kg
• Dimensions (hxwxd) (mm): 578 x 275 x 148

Standards:

• Safety: EN-IEC 60335-1, EN-IEC 60335-2-29,
• Emission, Immunity: EN 55014-1, EN 55014-2, EN-IEC 61000-3-2, EN-IEC 61000-3-3, IEC 61000-6-1, IEC 61000-6-2, IEC 61000-6-3

*Note: For a short period of time this product was called MultiGrid-II.

The Victron Energy MultiPlus-II 12/3000 120V combines advanced inverter and charger functionalities, making it ideal for energy storage and power management applications. With a continuous output power of up to 2400 watts and peak power of 5500 watts, it efficiently supplies reliable AC power for your critical loads. Its innovative PowerAssist feature prevents overloads by boosting power from the battery, ensuring seamless operation when connected to limited AC sources such as generators or shore power. This capability is particularly beneficial for off-grid systems or setups with limited power capacity, providing peace of mind during peak loads or power fluctuations. The MultiPlus-II also offers an integrated anti-islanding protection, complying with stringent country approvals, which enhances safety and reliability in grid-tied systems.

Designed for energy storage systems, the MultiPlus-II is compatible with MPPT solar chargers and grid-tie PV inverters, making it a flexible component for comprehensive solar and battery setups. Its seamless transfer switch functionality allows for automatic switching to backup power within less than 20 milliseconds during grid outages, protecting sensitive electronics and maintaining uninterrupted power supply. When paired with a Victron GX device like the Cerbo GX, users can remotely monitor and control the system via the VRM platform, providing real-time data and system management from anywhere in the world through a smartphone, tablet, or PC.

Constructed with a durable steel enclosure finished in blue (RAL 5012), the device is built to withstand demanding environments. It features a 50A transfer switch and a maximum AC input current of 50A per leg, suitable for various power configurations. The inverter operates efficiently over a wide DC input voltage range of 9.5 to 17 V and includes multiple communication ports for system integration and expansion. Its versatile features, combined with safety standards such as EN-IEC 60335-1 and IEC 61000-6 series compliance, make the Victron MultiPlus-II a comprehensive power management solution for residential, commercial, or off-grid applications. For detailed installation and operation instructions, refer to the official manual available at the provided URL.

Features:

• PowerAssist: Prevents overloads by boosting power from the battery during high load conditions

• Transfer Switch: 50A capacity ensures seamless switching between power sources

• Maximum AC Input Current: 50A per leg for versatile power handling

• Continuous Output Power: Up to 2400W at 25°C for reliable operation

• Peak Power: 5500W to handle short-term power surges

• Inverter DC Voltage Range: 9.5V to 17V for flexible battery configurations

• Built-in Anti-Islanding: Ensures safety and compliance in grid-tied systems

• Remote Monitoring: Compatible with Victron GX devices for real-time control via VRM platform

• Robust Construction: Steel enclosure with IP22 protection, suitable for demanding environments

• Multiple Communication Ports: For system integration, parallel, and split-phase operation